Disclosure of Invention
In order to solve the problems, the invention provides the internal mold vibration mechanism for the concrete member vibration table, which adopts a horizontal vibration mode, is suitable for producing members with different sizes and is convenient to operate.
The invention realizes the purpose through the following technical scheme:
the utility model provides a concrete member is centre form vibration mechanism for shaking table, is including the vibrator body of taking eccentric oscillator, the vibrator body passes through flexible mounting bracket to be supported, and the eccentric oscillator of vibrator body is connected with the transmission shaft spare, and the transmission shaft spare drives eccentric oscillator and rotates and produce horizontal vibration power, and the outer wall of vibrator body is equipped with the biography mechanism that shakes that is used for being connected with the centre form contact, the biography mechanism that shakes has at least a set ofly, and every group biography mechanism that shakes includes at least one fixed contact and at least one flexible contact, perhaps includes two at least flexible contacts.
The further improvement is that the fixed contact pieces and the telescopic contact pieces in each group of the vibration transmission mechanism are dispersedly arranged at the same height on the outer wall of the vibrator body.
The further improvement is that the telescopic contact element is a hydraulic telescopic cylinder which is arranged along the outer wall of the vibrator body and radially outwards.
The further improvement is that the fixed contact piece is a fan-shaped annular plate which is arranged along the outer wall of the vibrator body and radially outwards.
The further improvement lies in that the flexible mounting frame comprises a first structural member and a second structural member, the first structural member is fixedly connected with the bottom end of the vibrator body, the second structural member is positioned below the first structural member, and the second structural member is flexibly connected with the first structural member through a plurality of flexible supporting pieces.
The first structural member is a plate, and the second structural member is composed of two plates and a plurality of rods vertically arranged between the two plates.
In a further improvement, the drive shaft member includes
The first coupling is connected with a driving wheel for power input;
the second coupler is connected with an eccentric vibrator mandrel of the vibrator body;
the first coupler and the second coupler are connected in a telescopic mode along the vertical direction.
The improved structure of the coupler is characterized in that a first sleeve is connected to the top end of the first coupler, a second sleeve is connected to the bottom end of the second coupler, a movable rod is arranged between the first sleeve and the second sleeve, two ends of the movable rod respectively extend into the first sleeve and the second sleeve, and the movable rod is at least in sliding connection with one of the first sleeve and the second sleeve through splines.
The further improvement is that the top of the vibrator body is in a conical structure.
The invention has the beneficial effects that:
(1) the vibrator can be suitable for forming concrete members with different sizes through a vibration transmission mechanism which can be adjusted in a telescopic mode, and the vibration transmission mechanism adopts a hydraulic connection structure, so that tight connection can be guaranteed, and the transmission capacity is high;
(2) the vibrator generates horizontal vibration force through the vertical eccentric vibrator to enable the mould to continuously vibrate horizontally, so that concrete in the mould is driven to be uniformly distributed, and compared with vertical vibration, the horizontal vibration does not need to overcome the gravity of a component, so that the abrasion of an eccentric vibrator bearing is reduced, meanwhile, the consumed energy is lower, the stability of the machine is higher, and the service life is longer;
(3) the vibrator is flexibly installed, and meanwhile, the transmission shaft part is vertically arranged in a telescopic manner, so that unnecessary stress in the vertical direction generated in the rotating process of the eccentric vibrator can be eliminated during working, and the quality of a concrete member is ensured;
(4) the top of vibrator sets up to the toper structure, and the forming die of being convenient for cup joints with the vibrator in hoist and mount process, has reduced the requirement to the operation proficiency.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Referring to fig. 1 and 2, an internal mold vibration mechanism for a concrete member vibration table comprises a vibrator body 1 with an eccentric vibrator 101, the vibrator body 1 is supported by a flexible mounting frame 2, the eccentric vibrator 101 of the vibrator body 1 is connected with a transmission shaft part 3, the transmission shaft part 3 drives the eccentric vibrator 101 to rotate to generate horizontal vibration force (namely, the eccentric vibrator 101 is vertically arranged and transversely eccentric), the outer wall of the vibrator body 1 is provided with a vibration transmission mechanism 4 which is in contact connection with the internal mold, the vibration transmission mechanism 4 is provided with at least one group, and each group of vibration transmission mechanisms 4 comprises at least one fixed contact element 401 and at least one telescopic contact element 402 or comprises at least two telescopic contact elements 402.
In the present invention, the fixed contact 401 and the telescopic contact 402 in each set of vibration transmission mechanism 4 are dispersedly arranged at the same height on the outer wall of the vibrator body 1. Specifically, the telescopic contact piece 402 is a hydraulic telescopic cylinder which is arranged along the outer wall of the vibrator body 1 radially outwards, and the length of the telescopic cylinder extending out of the outer ring can be adjusted to adapt to internal molds of different sizes, and the telescopic cylinder is tightly connected and has strong transmission capacity. The fixed contact element 401 is a sector annular plate which is arranged along the outer wall of the vibrator body 1 radially outwards, so that the edge of the outer ring is convenient to contact with the inner die of the forming die. In addition, the fan-shaped annular plate and the hydraulic telescopic cylinder are both installed through arc-shaped plates matched with the outer wall of the vibrator body 1. Preferably, there are two sets of vibration transmission mechanisms 4, each set of vibration transmission mechanism 4 includes two fixed contact members 401 and one telescopic contact member 402, and the three contact members are uniformly distributed on the circumference of the outer wall of the vibrator body 1.
In the invention, the flexible mounting frame 2 comprises a first structural member 201 and a second structural member 202, the first structural member 201 is fixedly connected with the bottom end of the vibrator body 1, the second structural member 202 is positioned below the first structural member 201, and the second structural member 202 is flexibly connected with the first structural member 201 through a plurality of flexible supporting members 203. The first structural member 201 is a plate, which may be a base plate of the vibrator 2 directly or an additional plate, and is fixedly connected to the bottom end of the vibrator body 1 through a bolt, and the first structural member 201 may further include some structures such as reinforcing plates and reinforcing rings because a higher connection strength is required; the second structural member 202 may be composed of two plates and a plurality of rods vertically arranged between the two plates, the plates and the rods are fixed by bolts, and the heights of the rods can be adjusted as required, so that the vibrator body 1 is suitable for forming molds with different heights, and spaces for arranging other structures are provided; the flexible supports 203 are uniformly distributed and can be made of flexible materials, such as rubber, and can also be of a metal spring type structure; when flexible materials such as rubber are adopted, the flexible supporting piece 203 can be arranged to be of a cylindrical structure, a reinforcing bolt is inserted into the center of the flexible supporting piece, and collapse and dislocation of the rubber are avoided.
In the present invention, the drive shaft member 3 includes:
the driving wheel 302 is connected to the first coupler 301, and the driving wheel 302 can be arranged at the bottom end or the outer ring position of the first coupler 301;
a second coupling 303, wherein the second coupling 303 is connected with the eccentric vibrator 101 mandrel of the vibrator body 1;
the first coupler 301 and the second coupler 303 are telescopically connected in a vertical direction, that is, the distance between the first coupler 301 and the second coupler 303 can be freely enlarged or shortened.
In order to realize that the distance between the first coupler 301 and the second coupler 303 is adjustable and ensure transmission, a first sleeve 304 may be connected to the top end of the first coupler 301, a second sleeve 305 is connected to the bottom end of the second coupler 303, a movable rod 306 is arranged between the first sleeve 304 and the second sleeve 305, two ends of the movable rod 306 respectively extend into the first sleeve 304 and the second sleeve 305, and the movable rod 306 is at least connected with one of the first sleeve 304 and the second sleeve 305 through a spline in a sliding manner, that is: when one end of the movable rod 306 is slidably connected to the first sleeve 304 through a spline, the other end of the movable rod is fixedly connected to the second sleeve 305, or when one end of the movable rod 306 is slidably connected to the second sleeve 305 through a spline, the other end of the movable rod is fixedly connected to the first sleeve 304, or both ends of the movable rod are slidably connected through a spline, and at this time, the sliding range needs to be limited by a structure.
In other embodiments, the first sleeve 304 and the second sleeve 305 may be replaced by solid rod members, and the movable rod 306 may be replaced by tubular members, which are connected by splines. Of course, the spline connection has the advantages of uniform stress, large bearing load and the like, and in some embodiments, structures such as flat keys and the like can be adopted as long as the axial movability and the radial synchronous transmission can be ensured.
This vibrator has realized the flexible mounting of vibrator body 1 through the setting of flexible mounting 2 and transmission shaft member 3, consequently when vibrator body 1 horizontal vibration, can eliminate the unnecessary stress of vertical direction that eccentric oscillator 101 rotation in-process produced to ensure the quality of concrete member. In addition, in preferred embodiment, flexible mounting bracket 2 and transmission shaft member 3 all are located the bottom of vibrator body 1, therefore, the plate in flexible mounting bracket 2 need set up in the centre and perforate to make transmission shaft member 3 or corresponding pivot alternate, can add a plurality of bearings in the position of alternating simultaneously, in order to improve driven stability.
It should be noted that, the transmission shaft member 3 may be replaced by a universal joint, which plays roles of buffering, damping and improving dynamic performance of a shaft system, and this embodiment also belongs to the protection scope of the present application.
In the invention, the top of the vibrator body 1 is of a conical structure, such as a cone, a pyramid and the like, so that the forming die can be conveniently sleeved with the vibrator body 1 in the hoisting process.
Combine as shown in fig. 3, this vibrator is before using, need use base 5 to install, base 5 can be monoblock rectangle or circular structure, also can be for reducing weight and material loss, be the cross structure with base 5 setting, contain the extension limit of four symmetries promptly, set up driving piece 6 simultaneously, be used for being connected with drive wheel 302 transmission, vibrator body 1 installs the central point at base 5 top surface through flexible mounting bracket 2 and puts, respectively form a track along the length direction on four extension limits of base 5, all can remove on every track and be provided with a support 7, be used for supporting the mould, play the direction simultaneously, it is spacing, the effect of buffering.
As shown in fig. 4, after the vibrator is installed, when a concrete member is formed, the outer mold 8 and the inner mold 9 of the forming mold need to be assembled first, then the assembled mold is hoisted to the position right above the vibrator by using hoisting equipment, meanwhile, the positions of the supports 7 on the track are adjusted according to the size of the mold, then the mold is slowly lowered, the bottom end of the mold is supported on the supports 7, the vibrator body 1 is sleeved at the position of a gap in the middle of the inner mold 9, and then the vibration transmission mechanism 4 is in close contact with the inner wall of the inner mold 9 through hydraulic driving. The vibrator can be started at the moment, the concrete is poured, and the vibrator generates horizontal vibration force in the pouring process, so that the mould continuously horizontally vibrates, and the concrete in the mould is driven to be uniformly distributed.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.